# MD5 function
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Uses the MD5 cryptographic hash function to convert a variable-length string into a 32-character string that is a text representation of the hexadecimal value of a 128-bit checksum. 

## Syntax
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```
MD5(string)
```

## Arguments
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 *string*   
A variable-length string.

## Return type
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The MD5 function returns a 32-character string that is a text representation of the hexadecimal value of a 128-bit checksum.

## Examples
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The following example shows the 128-bit value for the string 'AWS Clean Rooms': 

```
select md5('AWS Clean Rooms');
md5
----------------------------------
f7415e33f972c03abd4f3fed36748f7a
(1 row)
```